Pact提供程序测试中断：pactVerificationTestTemplate？PreconditionViolution

Question

{"_links":
    {"self":{
        "href":"http://localhost/pacts/provider/provider-    name/latest","title":"Latest pact versions for the provider provider-name"},
    "pb:provider":{"href":"http://localhost/pacticipants/provider-name",
        "name":"provider-name"},
    "pb:pacts":[
        {"href":"http://localhost/pacts/provider/provider-name/consumer/consumer-name/version/1.0.0",
        "title":"Pact between consumer-name (v1.0.0) and provider-name",
        "name":"consumer-name"} 
     ],
    "provider":{
        "href":"http://localhost/pacticipants/provider-name",
        "title":"provider-name",
        "name":"DEPRECATED - please use the pb:provider relation"
     },
    "pacts":[
            {"href":"http://localhost/pacts/provider/provider-name/consumer/consumer-name/version/1.0.0",
            "title":"DEPRECATED - please use the pb:pacts relation. Pact between consumer-name (v1.0.0) and provider-name",
            "name":"consumer-name"
            }
        ]
    }
}

测试运行的结果如下：

[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 9.758 s 
FAILURE! - in com.tis.payment.mapper.PaymentMapperApplicationTests
[ERROR] pactVerificationTestTemplate{PactVerificationContext}  
Time elapsed: 9.752 s  
ERROR!
org.junit.platform.commons.util.PreconditionViolationException: 
No supporting TestTemplateInvocationContextProvider provided an invocation context
[INFO] 
[INFO] Results:
[INFO] 
[ERROR] Errors: 
[ERROR]   PaymentMapperApplicationTests.pactVerificationTestTemplate » PreconditionViolation
[INFO] 
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0

由于使用本地协议文件会使测试变为绿色，我想原因不在我的测试类代码中，不过如果有帮助的话，我在这里提供它：

@ExtendWith(SpringExtension.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT,
        properties = "server.port=8082")
@Provider("provider-name")
@PactBroker(host = "localhost", port = "80", tags="latest")
//@PactFolder("target/pacts") # uncomment to use local pact files
public class ApplicationTests {

    @MockBean
    private ProviderServiceClient providerServiceClient;

    @BeforeEach
    void setupTestTarget(PactVerificationContext context) {
        context.setTarget(new HttpTestTarget("localhost", 8082, "/"));
    }

    @TestTemplate
    @ExtendWith(PactVerificationInvocationContextProvider.class)
    void pactVerificationTestTemplate(PactVerificationContext context) {
        context.verifyInteraction();
    }

    @State({"valid payment file"})
    public void toValid() {
        ServiceResponse response = new ServiceResponse();
        response.setBatchId("test");
        response.setId(1L);
        when(providerServiceClient.save(any())).thenReturn(response);
    }

    @State({"invalid payment file"})
    public void toInvalid() {
    }
}

由于使用本地协议文件不是一个选项，我真的想知道如何修复错误，并将感谢任何有帮助的意见。

<dependency>
    <groupId>au.com.dius</groupId>
    <artifactId>pact-jvm-model</artifactId>
    <version>3.5.22</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>au.com.dius</groupId>
    <artifactId>pact-jvm-provider-junit5_2.12</artifactId>
    <version>3.5.22</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>au.com.dius</groupId>
    <artifactId>pact-jvm-consumer-junit5_2.12</artifactId>
    <version>3.5.22</version>
    <scope>test</scope>
</dependency>

<plugin>
    <groupId>au.com.dius</groupId>
    <artifactId>pact-jvm-provider-maven_2.12</artifactId>
    <version>3.5.22</version>
    <configuration>
        <pactBrokerUrl>http://localhost:80</pactBrokerUrl>
        <trimSnapshot>true</trimSnapshot>
        <!-- Defaults to false -->
    </configuration>
</plugin>

version: '2'
    services:
        postgres:
          image: postgres
          restart: always
          # healthcheck:
            # test: psql postgres --command "select 1" -U postgres
          ports:
            - "5432:5432"
          environment:
            POSTGRES_USER: postgres
            POSTGRES_PASSWORD: password
            POSTGRES_DB: postgres
        broker_app:
          image: dius/pact-broker
          depends_on: 
            - postgres
          ports:
            - "80:80"
          links:
            - postgres
          environment:
            PACT_BROKER_DATABASE_USERNAME: postgres
            PACT_BROKER_DATABASE_PASSWORD: password
            PACT_BROKER_DATABASE_HOST: postgres
            PACT_BROKER_DATABASE_NAME: postgres

Answer 1

JUnit 5错误org.JUnit.platform.commons.util.PreconditionViolationException：没有支持TestTemplateInvocationContextProvider提供了调用上下文表示没有提供测试上下文，因此无法调用模板化的测试方法。这可能是由于没有任何协议要验证（每个协议都产生一个调用上下文）。

现在要解决的实际问题是，为什么您没有从经纪人那里得到任何要验证的契约。Pact Broker本质上是一个存储库，并且JUnit5验证框架将使用Pact类上的所有注释来创建一个查询以发送给Pact Broker。此查询没有返回任何pacts，因此一定有不匹配的地方。

从您提供的信息中我唯一能看到的是JSON中的URL“http：//localhost/pacts/provider/provider-name/latest”有问题（提供者名称中有空格）。如果这不仅仅是SO的格式问题，那么它将不匹配（代理可能会返回带有该URL的404）。